PMID: 8962804Jan 1, 1996Paper

Effects of several methods of thoracic drainage on respiratory function

Cirugía pediátrica : organo oficial de la Sociedad Española de Cirugía Pediátrica
R NúñezE Blesa

Abstract

The object of this study was to verify the influence on the pulmonary function of the pleural space ampliation with pleural drainage tube underwater seal, with several volumes or with variables negative pressures. We performed 42 New Zealand white rabbits of both sexes with an average age of 57 +/- 9.31 days and an average weight of 1720 +/- 181 g. The experimental protocol consisted of study group: P1 (n = 14) was performed a unilateral thoracostomy at the 5th. Intercostal space and P2 (n = 14) with bilateral pleural drainage. The pleural drainage tube (drain trocart ORX Vygon number 8) connected at small bottle (Fp), with 35 ml of extrapleural volume and at big bottle (FG) with 3940 ml of extrapleural volume and vacuum suction of various negative pressures (-5, -10, -15 and -20 cm H2O). C1 (n = 7) with unilateral pleural drainage clamped and C2 (n = 7) with bilateral pleural drainage clamped. Anesthesia was induced with ketamine hydrochloride (7.5 ml/Kg) and propionilpromazyne (1.5 ml/Kg) intramuscular cocktail and after maintained with bolus injection of 1/4 induction dose. We studied the mortality, the the fluctuations of drain hydrostatic column, heart rate (FC), respiratory rate (FR) and blood gas tensions, after cannulat...Continue Reading

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